ISO New England

Balancing Authority Summary Information

ISO New England is ranked #15 out of 64 balancing authorities in terms of total annual electricity generation.

Balancing AuthorityISO New England
States Connecticut Maine Massachusetts New Hampshire New York Rhode Island Vermont
Last Update Jul 2026
Annual Generation 111.1 TWh
Power Plants1,629
Utilities833
Ranked #15 out of 64 in terms of net annual generation
Ranked #10 out of 53 in terms of annual generation from natural gas
Power Plant Types Natural Gas | 54.9% Nuclear | 25% Wind | 5.1% Water | 4.5% Other Fuel | 4.4% Solar | 1.6% Coal | 0.1%

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Daily Net Generation for ISO New England for the past 3 Years

List of All ISO New England Power Plants

Displaying Results 401 to 500 of 1,367
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
Exelon Framingham LLCConstellation Power, IncFramingham, MA1 GWhAug 1969Dec 2025 Distillate Fuel Oil
DDR Shoppers WorldAltus Power America Management, LLCFramingham, MA2 GWhOct 2017Dec 2025 Solar
Framingham State University PlantFramingham State UniversityFramingham, MA38 MWhMay 1974May 2026 Solar : 63.2% Distillate Fuel Oil : 36.8%
Franklin 2CD US Solar MT 2 LLCFranklin, MA6 GWhNov 2013Dec 2025 Solar
126 Grove Solar LLCAltus Power America Management, LLCFranklin, MA2 GWhMay 2012Dec 2025 Solar
Kearsarge Upper UnionKearsarge Upper Union LLCFranklin, MA2 GWhFeb 2023Dec 2025 Solar
Eastman FallsCentral Rivers Power NH, LLCFranklin, NH22 GWhJul 1937Dec 2025 Water
Stevens Mills DamEagle Creek Renewable Energy, LLCFranklin, NH4 GWhMay 1982Dec 2025 Water
Fredonia Solar LLCAltus Power America Management, LLCFredonia, NY1 GWhAug 2021Dec 2025 Solar
Beaver Ridge WindCPV Beaver Ridge Wind LLCFreedom, ME11 GWhOct 2008Dec 2025 Wind
Acushnet-Braley Road 1CleanCapital HoldingsFreetown, MA3 GWhDec 2012Dec 2025 Solar
Freetown SolarMass Solar, LLCFreetown, MA6 GWhFeb 2015Dec 2025 Solar
Syncarpha FreetownMarie's Way Solar I, LLCFreetown, MA6 GWhOct 2016Dec 2025 Solar
Bullock Road Solar 1Bullock Road Solar 1, LLCFreetown, MA4 GWhJun 2018Dec 2025 Solar
Braley Road 2Mass Solar, LLCFreetown, MA4 GWhFeb 2015Dec 2025 Solar
Freetown MA 1, LLCNavisun LLCFreetown, MA2 GWhNov 2022Dec 2025 Solar
Washburn Road SolarREA Investments, LLCFreetown, MA3 GWhNov 2018Dec 2025 Solar
NL MA - CopicutStandard SolarFreetown, MA6 GWhMay 2025Dec 2025 Solar
Skyway Avenue Solar FarmREA Investments, LLCFrenchville, ME3 GWhFeb 2024Dec 2025 Solar
FryeburgNautilus Solar SolutionsFryeburg, ME9 GWhApr 2023Dec 2025 Solar
Market Street Gardiner Solar, LLCREA Investments, LLCGardiner, ME6 GWhJun 2022Dec 2025 Solar
GardinerKEI (Maine) Power Management (III) LLCGardiner, ME4 GWhJun 1985Jun 2025 Water
Gardner Solar 1Gardner Solar 1, LLCGardner, MA3 GWhApr 2014Dec 2025 Solar
Dept of Corrections NCCI WindDept of Corrections NCCI WindGardner, MA2 GWhOct 2013May 2026 Wind
Mt Wachusett Community CollegeMt Wachusett Community CollegeGardner, MA4 GWhFeb 2011May 2026 Wind
Clark Road Solar 1, LLCClark Road Solar 1, LLCGardner, MA8 GWhNov 2020Dec 2025 Solar
West Street Solar 1 LLCAES Distributed EnergyGardner, MA8 GWhNov 2019Dec 2025 Solar
Gardner - Otter River RoadOtter River Road Solar LLCGardner, MA4 GWhSep 2019Dec 2025 Solar
Saint Albans SolarCypress Creek RenewablesGeorgia, VT7 GWhSep 2018Dec 2025 Solar
Kearsarge GillKearsarge Gill LLCGill, MA3 GWhDec 2017Dec 2025 Solar
Gilman MillAmpersand Gilman Hydro LPGilman, VT2 GWhDec 1940Dec 2025 Water
UDR Glastonbury Fuel CellUIL Distributed Resources, LLCGlastonbury, CT16 GWhJan 2016Dec 2025 Natural Gas
Glastonbury Solar OneNJR Clean Energy Ventures CorporationGlastonbury, CT821 MWhAug 2025Dec 2025 Solar
Dynamic - Glenburn Broadway One (CSG)Altus Power America Management, LLCGlenburn, ME6 GWhOct 2024Dec 2025 Solar
Swaggertown Solar IGreen Street Power PartnersGlenville, NY4 GWhOct 2024Dec 2025 Solar
Swaggertown Solar IIGreen Street Power PartnersGlenville, NY7 GWhAug 2024Dec 2025 Solar
GD Glocester White Oak I, LLCGD Glocester White Oak I, LLCGlocester, RI3 GWhNov 2020Dec 2025 Solar
Howard Lane SolarNJR Clean Energy Ventures CorporationGlocester, RI2 GWhAug 2023Dec 2025 Solar
1639 RT 29 Solar 21639 RT 29 Solar 2, LLCGloversville, NY4 GWhNov 2020Dec 2025 Solar
1639 RT 29 Solar 11639 RT 29 Solar 1, LLCGloversville, NY7 GWhNov 2020Dec 2025 Solar
Gregg FallsEagle Creek Renewable Energy, LLCGoffstown, NH8 GWhNov 1985Dec 2025 Water
CMEEC - Polaris Park Solar HybridTesla Inc.Gordon, CT4 GWhJul 2017Dec 2025 Solar : 99.9%
North GorhamBrookfield White Pine Hydro LLCGorham, ME6 GWhDec 1924Dec 2025 Water
Gorham Solar 1 (CSG)CleanCapital HoldingsGorham, ME7 GWhOct 2023Dec 2025 Solar
GorhamCentral Rivers Power NH, LLCGorham, NH8 GWhJul 1917Dec 2025 Water
WilliamsburgAES Distributed EnergyGoshen, MA6 GWhJun 2019Dec 2025 Solar
Orange County Solar Farm (NY)Tesla Inc.Goshen, NY2 GWhApr 2017Dec 2025 Solar
Glenmere LakeAES Distributed EnergyGoshen, NY3 GWhMay 2021Dec 2025 Solar
GSPP 126 Little Bow Rd N, LLCGreen Street Power PartnersGouverneur, NY7 GWhNov 2023Dec 2025 Solar
GSPP 126 Little Bow Rd S, LLCGreen Street Power PartnersGouverneur, NY7 GWhNov 2023Dec 2025 Solar
BlueWave Capital - Grafton (SREC II)TerraForm Solar XVII, LLCGrafton, MA2 GWhFeb 2015Dec 2025 Solar
Grafton PVMN8 Energy LLCGrafton, MA4 GWhSep 2016Dec 2025 Solar
Grafton SolarCD US Solar MT 2 LLCGrafton, MA2 GWhSep 2013Dec 2025 Solar
Kearsarge GranbyKearsarge Granby LLCGranby, MA4 GWhFeb 2017Dec 2025 Solar
Granby LFGIndustrial Power Services Corp.Granby, MA2 GWhAug 2001Dec 2025 Landfill Gas
Granby Solar, LLC CSGGranby Solar, LLCGranby, MA6 GWhJun 2021Dec 2025 Solar
Valley Sun SolarValley Sun Solar LLCGrand Isle, ME3 GWhNov 2024Dec 2025 Solar
Cobble MountainCity of Holyoke Gas and Elec Dept - (MA)Granville, MA7 GWhDec 1929Dec 2025 Water
Dynamic - Gray SolarAltus Power America Management, LLCGray, ME5 GWhNov 2024Dec 2025 Solar
ShakerNautilus Solar SolutionsGray, ME6 GWhJun 2022Dec 2025 Solar
NolanLSE Crater LLCGreat Barrington, MA2 GWhOct 2017Dec 2024 Solar
Monument ValleyLSE Lepus LLCGreat Barrington, MA3 GWhDec 2021Dec 2024 Solar
Kearsarge GBKearsarge GB LLCGreat Barrington, MA3 GWhJul 2018Dec 2025 Solar
Rising PaperAltus Power America Management, LLCGreat Barrington, MA3 GWhApr 2016Dec 2025 Solar
Rail TrailAltus Power America Management, LLCGreat Barrington, MA3 GWhApr 2016Dec 2025 Solar
Manchester Community College NorthOnyx Asset Services GroupGreat Path, CT1 GWhSep 2018Dec 2024 Solar
Passadumkeag Windpark LLCSouthern Power CoGreenbush, ME138 GWhJun 2016May 2026 Wind
Axio Green LLCAltus Power America Management, LLCGreenfield Township, MA2 GWhMay 2012Dec 2025 Solar
Greenfield Solar PVNSTAR Electric CompanyGreenfield, MA3 GWhDec 2018Dec 2025 Solar
Cos CobConnecticut Jet Power LLCGreenwich, CT2 GWhAug 1969Dec 2025 Kerosene
Clinton SolarEcos Energy LLCGriswold, CT2 GWhApr 2021Dec 2025 Solar
Sherman SolarEcos Energy LLCGriswold, CT2 GWhNov 2019Dec 2025 Solar
Jackson Solar (CT)Ecos Energy LLCGriswold, CT2 GWhNov 2019Dec 2025 Solar
CMEEC - Navy NE TridentTesla Inc.Groton, CT1 GWhMay 2017Dec 2025 Solar
Pfizer Groton PlantPfizer IncGroton, CT75 GWhDec 1947May 2026 Natural Gas : 88.5% Distillate Fuel Oil : 11.5%
Water Treatment 1 & 2Connecticut Mun Elec Engy CoopGroton, CT494 MWhSep 2010May 2026 Distillate Fuel Oil
Gary Court 1 & 2Connecticut Mun Elec Engy CoopGroton, CT381 MWhJun 2010Dec 2025 Distillate Fuel Oil
Bridge Street 1 & 2Connecticut Mun Elec Engy CoopGroton, CT452 MWhJun 2010Dec 2025 Distillate Fuel Oil
Pfizer Groton Fuel CellGroton Fuel Cell 1 LLCGroton, CT30 GWhSep 2016Dec 2024 Natural Gas
Naval Sub Base New London Fuel CellGroton Station Fuel Cell, LLCGroton, CT44 GWhNov 2022Dec 2024 Natural Gas
Subase Microgrid ProjectConnecticut Mun Elec Engy CoopGroton, CT30 GWhNov 2022Dec 2025 Natural Gas
West Groton CHPHollingsworth & Vose Co West GrotonGroton, MA22 GWhNov 2015Dec 2024 Natural Gas
GELD Solar FarmAmeresco, Inc - GELDGroton, MA3 GWhMay 2016Dec 2025 Solar
Groton Wind LLCAvangrid Power LLCGroton, NH101 GWhNov 2012May 2026 Wind
Groveland SolarRWE Clean EnergyGroveland, MA4 GWhNov 2012Dec 2025 Solar
Lost NationGranite Shore PowerGroveton, NH422 MWhAug 1969Dec 2024 Distillate Fuel Oil
Hadley 2 Solar, LLC CSGHadley 2 Solar, LLCHadley, MA3 GWhNov 2016Dec 2025 Solar
Hadley Solar NG, LLCNuGen Capital ManagementHadley, MA3 GWhJun 2014Dec 2025 Solar
Hadley 3 Solar (North)Hadley 3 Solar, LLC (North)Hadley, MA3 GWhNov 2019Dec 2025 Solar
Hadley 3 Solar (South)Hadley 3 Solar, LLC (South)Hadley, MA3 GWhNov 2019Dec 2025 Solar
Syncarpha Halifax Hybrid CSGSyncarpha Halifax, LLCHalifax, MA3 GWhNov 2020Dec 2025 Solar
Halifax SolarNuGen Capital ManagementHalifax, MA4 GWhJul 2015Dec 2025 Solar
BWC Jimmie PondNavisun LLCHampden, ME3 GWhNov 2024Dec 2025 Solar
Hampden Landfill Solar LLCHampden Landfill Solar LLCHampden, MA2 GWhNov 2024Dec 2025 Solar
Hampden Solar PVNSTAR Electric CompanyHampden, MA6 GWhOct 2019Dec 2025 Solar
HampdenAltus Power America Management, LLCHampden, MA5 GWhJun 2015Dec 2025 Solar
Sydney SolarEcos Energy LLCHampton, CT3 GWhMay 2020Dec 2025 Solar
Dickinson Solar (CT)Ecos Energy LLCHampton, CT2 GWhMay 2020Dec 2025 Solar
McHenry SolarEcos Energy LLCHampton, CT2 GWhSep 2021Dec 2025 Solar
Hampton FacilityFoss Manufacturing Company LLCHampton, NH28 GWhSep 1978May 2026 Natural Gas

Surrounding Balancing Authorities

Balancing Authorities with Similar Net Generation

RankBalancing AuthorityAnnual Net Generation# Power Plants
#7California Independent System Operator169.4 TWh2,135
#9Tennessee Valley Authority163.4 TWh207
#10Florida Power & Light Co.152.2 TWh187
#12New York Independent System Operator134.3 TWh1,299
#13Duke Energy Carolinas112.6 TWh577
#15ISO New England111.1 TWh1,629
#16Bonneville Power Administration91.6 TWh167
#17Duke Energy Progress East64.5 TWh565
#18PacifiCorp East60.9 TWh222
#19Salt River Project Agricultural Improvement and Power District60.3 TWh49